Published July 1988 | Version v1
Journal article Metadata-only

Development of an incipient rotor crack detection method by acoustic emission techniques

Creators

  • 1. Electricite de France, 75 - Paris. Direction des Etudes et Recherches
  • 2. Institut National des Sciences Appliquees (INSA), 69 - Villeurbanne (France)

Description

The objective of the program presented is to develop a method of detection and monitoring of crack growth in machine rotor by application of acoustic emission techniques. This program is performed by R and D Division of Electricite de France, jointly with INSA de Lyon. The first task of the program is relative to the characterization of acoustic emission during a progressive tensile test performed on a NCT specimen. The second task of the program deals with the experimentation of acoustic emission techniques for the monitoring of a specimen during cycling bending tests. The last task of the program is relative to evaluation of application of acoustic emission techniques for a small rotor integrity monitoring during fatigue rotation tests

Abstract (French)

L'etude presentee, engagee par la Direction des Etudes et Recherches d'Electricite de France en collaboration avec l'INSA de Lyon, a pour objective d'evaluer les possibilites de surveillance de l'integrite et de detection de fissuration d'un rotor de machine tournante, par application des techniques de l'emission acoustique. La premiere etape de l'etude est realise sur une eprouvette prefissuree. Elle est destinee a caracteriser les signaux d'emission acoustique emis lors de la sollicitation en traction. La second etape de l'etude est consacree a l'experimentation d'une surveillance, par emission acoustique d'eprouvette sollicitees en flexion rotative. La derniere etape de l'etude est relative a l'etude d'un cas pratique; un rotor de petites dimensions en mouvement est surveille par emission acoustique, de facon a evaluer la methode de surveillance preconisee

Additional details

Additional titles

Original title (French)
Recherche d'une methode de detection prococe de fissuration de rotor par emission acoustique

Publishing Information

Journal Title
Bulletin de la Direction des Etudes et Recherches, Serie A
Journal Issue
no.2
Series
Bull. Dir. Etud. Rech., Ser. A.
ISSN
0013-449X
CODEN
EFDNA

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
20003588
Subject category
S42: ENGINEERING;
Descriptors DEI
ACOUSTIC EMISSION TESTING; CRACK PROPAGATION; FATIGUE; STAINLESS STEELS; TENSILE PROPERTIES; TURBOGENERATORS
Descriptors DEC
ACOUSTIC TESTING; ALLOYS; CARBON ADDITIONS; ELECTRIC GENERATORS; ELECTRICAL EQUIPMENT; EQUIPMENT; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; MATERIALS TESTING; MECHANICAL PROPERTIES; NONDESTRUCTIVE TESTING; STEELS; TESTING